-zimebmann



(No Model.) 3 Sheets-Sheet 2.

. J. ZIMBRMANN.

JAGQUARD MECHANISM FOR LOOMS.

No. 507,575. Patented Oct, 31, 1893;

if" E4 UNITED STATES PATENT OFFICE.

JOHN ZIMERMANN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO SCHAUM &UHLINGER, OF SAME PLACE.

JACQUARD MECHANISM FOR Looms.

SPECIFICATION forming part of Letters Patent No. 507,575, datedOctober-31, 1893. Application filed May 6, 1892- Serial No. 432,086. (Nomodel.)

To all whom it may concern.-

Be it known that I, JOHN ZIMERMANN, of the city and county ofPhiladelphia, State of Pennsylvania, have invented a certain new andusefulImproved Jacquard Mechanism for Looms, of which the following is atrue and exact description, reference being had to the accompanyingdrawings, which form a part of this specification.

My invention relates to the construction of the Jacquard apparatus usedwith looms and has for its object to simplify and improve theconstruction of such mechanism, especially to avoid the shocks and jarsincident to the usual method of operating the jacquard, and to providean easy running and comparatively noiseless mechanism for shifting andsup- I porting the cards.

The nature of my invention will be best understood as explained inconnection with the drawings in which it is illustrated, and in whichFigure 1 is a view in elevation illustrating part of the device forcommunicating motion from the driving shaft of the loom to the J acquardapparatus; Fig. 1* showing the continuation of the card guide partlyillustrated in Fig.1; Fig. 2 an elevation showing the mechanism fortransmitting power in either direction from the main driving shaft to acounter shaft which in turn communicates with the jacquard. Fig. 3is anelevation on the section line 12'of Fig. 4; showing the mechanism of theJacquard apparatus. Fig. etis a plan view of the jacquard; Fig. 5 across sectional view on the line 56 of Fig. 3; Figs. 6, 7, 8 and 9detail views of parts of the mechanism shown on a larger scale, and Fig.10 a sectional view illustrating a modification.

A is the stationary frame of the Jacquard apparatus, on which aresupported the needles and books, the needles being indicated at L, theusual spring box at P, the hooks at S, the hook supporting plate at Q, Qbeing ridges on which the bottoms of the hooks rest. The knives or gridsare indicated at T, and the cords leading to the harness at R. The abovementioned parts are best shown in Fig. 3, and neednot be furtherillustrated or described as they are of the usual and well understoodconstruction. The frame Amay of course be supported in any convenientway, as shown, it rests upon cross beams B.

0 indicates the frame of the loom proper, 0 being the main drivingshaft.

I will first describe the mechanism for communicating motion from themain driving shaft to the Jacquard apparatus referring first to theparts shown in Figs. 1 and 2. To the frame of the loom O is secured insuitable bearings a shaft 0 upon which are loosely journaled two drivingwheels 0 O, which by suitable means for communicating motion areactuated in different directions by the driving shaft 0. The wheels 0are coupled at willto the shaft 0 by means of a clutch splined on theshaft and adapted to engage either of the driving wheels at will. Such aclutch is indicated at C Fig. 2, and the device is of course a familiarone, well known in vation shown. The wheels 0 are miter wheels,

both engaged by a miter wheel 0 on the end I of a shaft 0 which shaftcarries at its bottom amiter wheel 0 geared with a similar wheel 0 onthe driving shaft 0'.

Secured to the shaft Gis a sprocket wheel 0 which communicates motion toa shaft E by means of a chain D running over the sprocket Wheel 0 and asprocket wheel E on shaft E. D. D. are guide wheels over which thesprocket chain runs. The shaft E is carried in brackets E which aresecured to a frame J supported on the stationary frame A in such a wayas t o be free to move longitudinally. A reciprocating motion is givento the frame J in the construction shown by means of eccentrics K K#(see Figs. 3 and 4) which are connected by the usual eccentric strapwith rods K secured at K to the stationary frame. It is obvious ofcourse that as the shaft E rotates it and the frame to which it isconnected will be moved backward and forward as the eccentrics rotate.

In bearings on the frame J is a shaft F which is geared with the shaft Eby connecting mechanism which will convert the uniform rotation of theshaft E into an inter-M IOO receive the actuating pin and interveningsegmental recesses F. With this wheel is engaged the wheel E secured toa shaft E of a conformation which fits in the segmental recesses F ofwheel F, and having a pin E which as it rotates will engage in each ofthe recesses F in turn so that for each rotation of the shaft E thewheel F will make a rotative movement equal to the distance betweenadjacent pin holes F and then be held in engagement by the engagement ofthe circular part of the wheel E in the rests F. The shaft F has securedto it carrier wheels G G which support the cards indicated at H and feedthem forward or backward bringing one card at a time into operativeposition, that is to say; in front of a plate I which is supported onthe frame J being connected with it as shown by a framing 1; supportsare shown at H for the cards, certain of which have projections H asshown in Fig. 9 which serve to engage with the supports H and supportthe cards thereon. The function of the plate I is to support the cardsas they come into operative position in front of the needles permittingthe needles which come opposite to the pattern perforations of the cardto pass freely through it to the required distance, for which reason theplate I is most conveniently made with perforations corresponding innumber and position to the total number of needles in the Jacquardapparatus.

The combination with the frame J of the shafts E and F and theirconnecting mechanism and of card feeding devices actuated by shaft Finsures the sm00th,positive and even feeding of the cards which is thechief object of my invention.

M is a needle plate which supports the front end of the needles and issituated directly in front of the plate I. this needle plate as shown inthe drawings, that is to say; to attach it so that the plate I in itsforward movement will come in contact with it clamping the card betweenthe two dle plate is sustained on rods M suitably supported onhorizontal bearings and connected with springs M which normally hold itin a fixed position, and permit it to move backward under the pressureof the advancing plate I. In its forward position the needle plate M asshown in Figs. 3, 7, and 10 extends slightly beyond the ends of theneodles so that the cards are fed between the plain faced plates 1 and Mand all risk of catching and bending the ends of the needles is avoided.As the plate I moves forward it clamps the card between it and plate Mand then pushes the card and plate M back so that the needles pressagainst or extend through the card as the case may be.

In order to insure a proper alignment of I prefer to construct theneedle points at all times I extend the guide rods M of the plate M backto the spring box P and secure to their ends a plate M which extendsbehind the ends of the needles and when the plate M is in normalposition rests against the ends of the needles in their normal positionof rest. The plate M of course moves back with the plate M, thuspermitting such of the needles as come in contact with the card to moveback as it advances and insuring that the needles shall return promptlyto their normal position as the plate M follows the backward movement ofplate I. This dressing of the needles is accomplished by this devicewith the utmost promptness and precision.

In order to avoid the danger of the cards sticking to the carrier wheelsG, I provide strippers G which lift the cards off the carrier wheels incase they stick to the pegs or pins.

As shown in Figs. 3, 4:, 7 and 8 the needle plate M is supplemented by afixed needle plate N of the usual construction, but it is not at allnecessary as the apparatus can be constructed as shown in Fig. 10, theplate M being the sole support and guide for the front end of theneedles.

In Fig. 7 the plates 1 and M are shown in positions which they occupywhen the card is fed between them, while in Fig. 8 they are shown in thepositions which they occupy after the forward movement of the plate I,the card being clamped between the two plates and the plate movedbackward under the pressure.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In combination with the needles of a Jacquard apparatus the frame J,carrying shaft F and shaft E, gearing connecting said shafts asdescribed, so that a constant rotary movement of shaft E is transmittedto shaft F giving it an intermittent rotary movement, carrier wheels G Gmounted on shaft F and arranged to carry the cards, a plate I secured toframe J and adapted to support the cards when in operative position, andmeans as described, whereby reciprocating motion is given to frame J bythe revolution of shaft E.

2. In combination, the power shaft of a loom, a shaft 0, wheels as C Clooselyjournaled on said shaft, mechanism connecting the power shaftwith the wheels 0 G to drive them in opposite directions, a clutch keyedon shaft 0 and adapted to engage with either of wheels 0 at will todrive the shaft in either direction, a frame carrying shafts E and Fmeans for communicating motion from shaft 0 to shaft E, eccentrics K,mounted on shaft E, connecting rods K extending from the eccentrics tothe fixed frame and arranged to give the frame -J a reciprocatingmovement, means for communicating motion from shaft E to shaft Farranged as described, a card carrier G G mounted on shaft F, a cardsupporting plate I secured to frame J and a needle plate M situated infront of plate I, all substantially as and for the purpose specified.

3. In a Jacquard apparatus the reciprocating frame J in combinationwitha plate 1 secured to said frame and adapted to support the cardswhen in operative position, a shaft F carrier wheels G G secured to saidshaft and arranged to carry the cards to and from plate I; a star wheelF secured to shaft F having a series of recesses F to receive anactuating pin and a series of intervening segmental recesses F; a shaftE having secured to it a pin E adapted to engage recesses F in wheel Fand an oppositely disposed segmental rim E to fit in recesses F andmeans for driving shaft E and through it shaft F .4. In a Jacquardapparatus the reciprocating frame-J in combination with a shaft Fjournaled in the sides thereof carrier wheels G G' secured to saidshaft, plates I I secured to the rear of frameJ and to shaft F; a plateI secured to plates II and lying between the carrier wheels, and meansfor giving an intermittent rotary motion to shaft F and wheels G G.

5.1m combination with aneedle supporting. plate M sustained on yieldingconnections, a needle dressing plate M arranged in the rear of theneedles and connected with plate M so asto move with it and areciprocating card supporting plate I not connected with plates M and Mbut arranged to press a card against plate M and'to push said plate andthe attached "plate M backward as described.

JOHN 'ZIMERMANN.

Witnesses:

LISLE STOKES, J H. RUSSELL.

